The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 21, 2017
Filed:
Feb. 25, 2015
Coopervision International Holding Company, Lp, St. Michael, BB;
Hiroyuki Ueyama, Miyazaki, JP;
Charlie Chen, San Ramon, CA (US);
Yuan Xu, Fremont, CA (US);
Yuwen Liu, Dublin, CA (US);
Ying Zheng, Pleasanton, CA (US);
Paul Richardson, San Ramon, CA (US);
Hong Xue, Pleasanton, CA (US);
CooperVision International Holding Company, LP, St. Michael, BB;
Abstract
HEMA-compatible siloxane monomers are described that can be used to manufacture contact lenses that combine the attributes of HEMA-based contact lenses with the high oxygen permeability of silicone hydrogel lenses. Optically clear silicone hydrogel contact lens can be manufactured that comprise a polymeric lens body that is the reaction product of a polymerizable composition comprising: a) at least 25 wt. % of at least one hydroxyalkyl methacrylate; and b) at least 20 wt. % of at least one HEMA-compatible polysiloxane.